An exemplary embodiment, among others, of the present disclosure is directed to a drain closure assembly. Such an assembly has a head of the drain closure assembly that is fastened to a top end of a stem, wherein the bottom end of the stem is insertable in a drain shoe. The assembly further includes a gasket fastened around an outer cylinder of the stem below the head. Accordingly, the gasket comprises a series of concentric annular platforms such that a force applied to a top surface of the gasket causes an upper concentric annular platform having a smaller outer diameter to be compressed before the lower concentric annular platform having a larger outer diameter is compressed, thereby creating a seal between the head of the drain closure assembly and the drain shoe.
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1. A drain closure assembly comprising:
a head of the drain closure assembly that is fastened to a top end of a stem, wherein a bottom end of the stem is insertable in a drain shoe; and
a gasket fastened around an outer cylinder of the stem below the head, wherein the gasket comprises a series of concentric internal annular platforms of at least an upper concentric internal annular platform and a lower concentric internal annular platform, wherein the upper concentric internal annular platform is in contact with and supported by the lower concentric internal annular platform such that a force applied to a top surface of the gasket causes the upper concentric internal annular platform having an outer diameter to be compressed before the lower concentric internal annular platform having a larger outer diameter is compressed, wherein the upper concentric internal annular platform has a right circular cylindrical shape and the lower concentric internal annular platform has a right circular cylindrical shape,
wherein the gasket further comprises an upper outer portion and a lower outer portion that each meet at a line that defines a hinge at which the gasket is able to bend, wherein the lower outer portion features a sloped surface from a bottom edge of a rim of the gasket to the line at a top of the lower outer portion, wherein the upper outer portion has a right circular cylinder shape.
3. The drain closure assembly of
5. The drain closure assembly of
7. The drain closure assembly of
8. The drain closure assembly of
11. The drain closure assembly of
12. The drain closure assembly of
13. The drain closure assembly of
14. The drain closure assembly of
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This application claims priority to U.S. provisional application entitled, “GASKET SEALS FOR DRAIN CLOSURES,” having Ser. No. 62/577,304, filed Oct. 26, 2017, which is entirely incorporated herein by reference.
The present disclosure relates to drain closures for use with bathtubs, sinks, laundry tubs, and the like, and the gaskets or seals that are used as part of the assembly of such drain closures.
Many aspects of the present disclosure can be better understood with reference to the following drawings. The components in the drawings are not necessarily to scale, emphasis instead being placed upon clearly illustrating the principles of the present disclosure. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.
In one embodiment, in accordance with the present disclosure, a drain closure, such as a tub stopper, features a touch-toe design that pushes to open or close a drain passage. As part of an assembly of the tub stopper 100 in
For example, in one embodiment, the top portion 120 of the gasket 110 has a central circular opening that is arranged to fit closely around an annular groove of a post or stem 150 that is underneath the head or cap 105 of the tub stopper assembly. In the example of
As shown in
The line 140 (
When the tub stopper 105 is in a closed position, the rim 130 of the gasket 110 is pressed flat against the tub drain shoe flange by the stopper dome (cap or head) to form a tight seal which closes the drain passage. In an open position, the stopper head 105 and gasket 110 are displaced above the top of the tub drain shoe flange and the drain is then opened for drainage of liquid from the bathtub or other vessel equipped with the drain closure.
Referring now to
In various embodiments, more than one gasket 110 at varying heights and dimensions may be provided to a user to allow the tub stopper assembly 100 to fit more tub drain shoes since the sizes and depths of currently available tub drain shoes are not standardized. An exemplary embodiment of the tub stopper includes a ⅜ inch threaded post or a 5/16 inch threaded post or stem. In one embodiment, among others, the head of the tub stopper features a 2 inch diameter to accommodate a drain and may also feature a plastic construction that provides durability that will not rust. One exemplary embodiment of such a tub stopper is characterized by a height of 2.25 inches (or its approximate) and a width of approximately 2.0 inches (or its approximate).
As an illustration,
Referring now to
Instead of requiring o-ring(s) to fit the drain, the drain closure assembly of the present disclosure provides an improved gasket seal 1210. Therefore, instead of supplying several differently sized o-rings with the drain closure assembly 1200, a single gasket seal 1210 or a pair of gasket seals can be supplied to accommodate varying diameters of drains and essentially make the product more “universal” in fitting a wide variety of drain diameters. Accordingly, in one embodiment, a gasket seal 1210 may be provided having the following dimensions: 38.1 mm (1.5 inches) in width at widest section; 34.29 mm (1.35 inches) in width at its opposing side; and 5.36 mm in thickness (0.21 inches). In one embodiment, an additional gasket seal may also be provided having the following dimensions: 47.63 mm (1.88 inches) in width at widest section and 35.16 mm (1.38 inches) in width at its opposing side.
To install, an exemplary gasket seal 1210 is positioned on a drain stopper 1205, such as a tub stopper or sink stopper. In some embodiments, the drain stopper 1205 may feature a groove upon which the gasket seal may be positioned. The gasket seal 1210 may be characterized as having a right circular cone shape or a frusto-conical shape. As part of the assembly 1200, the top portion 1220 of the gasket seal 1210 has a wider diameter than the bottom portion 1230. Accordingly, the bottom portion 1230 projects generally upwards towards the top portion 1220 of the gasket seal 1200. The top portion 1220 of the gasket seal has a central circular opening that is arrange to fit closely around an annular groove of a stem or post 1207 that is underneath the head or cap 1208 of the drain stopper assembly 1200 and upper flange 1209.
To close the drain, the drain stopper 1200 can be inserted in the drain and pushed down to create a seal. When the drain stopper 1200 is in a closed position, the angled slope (approximately 45 degrees) of the gasket seal 1210 is pressed against the side of the drain to form a tight seal which closes the drain passage. To open the drain, the stopper head 1208 can be depressed to access the drain opening in 1200.
Different views of the drain closure assembly 1200 and gasket seal 1210 are provided herein. Accordingly,
It should be emphasized that the above-described embodiments of the present disclosure are merely possible examples of implementations, merely set forth for a clear understanding of the principles of the present disclosure. Many variations and modifications may be made to the above-described embodiment(s) without departing substantially from the spirit and principles of the present disclosure. All such modifications and variations are intended to be included herein within the scope of this disclosure.
Jones, Jr., Robert Clifton, Hossain, Muhammad Towheed, Fregoe, Casey J.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Nov 01 2017 | JONES, ROBERT CLIFTON, JR | Danco, Inc | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 048003 | /0207 | |
Nov 01 2017 | HOSSAIN, MUHAMMAD TOWHEED | Danco, Inc | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 048003 | /0207 | |
Nov 01 2017 | FREGOE, CASEY J | Danco, Inc | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 048003 | /0207 | |
Oct 16 2018 | Danco, Inc. | (assignment on the face of the patent) | / |
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